| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > vsnid | Structured version Visualization version GIF version | ||
| Description: A setvar variable is a member of its singleton. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| vsnid | ⊢ 𝑥 ∈ {𝑥} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 3458 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | 1 | snid 4627 | 1 ⊢ 𝑥 ∈ {𝑥} |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2142 {csn 4588 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-ext 2734 |
| This proof depends on definitions: df-bi 210 df-an 401 df-tru 1572 df-ex 1809 df-sb 2096 df-clab 2741 df-cleq 2754 df-clel 2837 df-v 3456 df-sn 4589 |
| This theorem is used by: exsnrex 4645 rext 5428 unipw 5430 xpdifid 6164 xpdifcnvepel 6165 opabiota 6963 fnressn 7155 fressnfv 7157 snnex 7755 frrlem12 8292 frrlem14 8294 mapsnd 8882 findcard2d 9149 ac6sfi 9242 iunfi 9298 elirrvOLDOLD 9559 kmlem2 10142 fin1a2lem10 10399 hsmexlem4 10419 iunfo 10529 modfsummodslem1 15851 lcmfunsnlem2lem1 16702 coprmprod 16725 coprmproddvdslem 16726 c0snmgmhm 20551 lbsextlem4 21296 frlmlbs 21958 coe1fzgsumdlem 22474 evl1gsumdlem 22527 maducoeval2 22808 dishaus 23550 dis2ndc 23628 dislly 23665 dissnlocfin 23697 comppfsc 23700 txdis 23800 txdis1cn 23803 txkgen 23820 isufil2 24076 alexsubALTlem4 24218 tmdgsum 24263 dscopn 24741 ovolfiniun 25671 volfiniun 25717 jensen 27164 uvtx01vtx 29758 cplgr1vlem 29790 unidifsnel 32892 gsumpart 33392 dflring3 33796 mplidomlem 33926 vieta 33979 extdg1id 34065 irngss 34086 esum2dlem 34491 bnj1498 35458 funen1cnv 35486 fineqvnttrclselem2 35543 wevgblacfn 35603 cvmlift2lem1 35802 funpartlem 36442 ttcid 37031 topdifinffinlem 38021 fvineqsneq 38086 pibt2 38091 finixpnum 38284 mbfresfi 38345 pclfinN 40702 sn-iotalem 43020 mzpcompact2lem 43510 dvmptfprod 46687 fourierdlem48 46896 sge0sup 47133 funressnvmo 47810 dfclnbgr6 48649 dfsclnbgr6 48651 termco 50287 termcarweu 50334 diag1f1o 50340 diag2f1o 50343 |
| Copyright terms: Public domain | W3C validator |